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Old October 27th, 2001, 10:11 PM   #1
Henry
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Newbie question: Engine oil...

Hi,

I need to refill some engine oil. I just remeber that the dealer told me to use Mobil 1 but I forgot the rating. The manual says we should use 5W30, 10W30, 10W40 if the ambient temperature is mostly below 50 deg. F and 10W40, 15W40, 15W50 if it is mostly above 50 deg. F.

I can't find Mobil 1 of 10W40 in Pep Boy's. What should I use?

Henry
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Old October 28th, 2001, 07:06 AM   #2
Tom M (Sunol, CA)
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Most people just use 15W15 - which is readily available. *NM*

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Old October 28th, 2001, 09:47 AM   #3
Ca Crusin
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Re: Engine oil weight...??

I called the Mobil Tech Center and they recommended 0W40 which is at most dearlers. They said that Porsche ran a bunch of tests and determined that their new 0W40 was the best performing at any ambient temperature. Whats you opinion?
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Old October 28th, 2001, 11:21 AM   #4
Tool Pants - Jeff Lopez
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I use 15W-50

here in San Jose, Calif. It is the only oil my 1/97 has seen, except for the factory fill. My dealer here in San Jose also uses 15W-50 for Boxsters.

Some people want to use the weight that is put in at the factory. First it was 10W-40 and now it is 0W-40. They sell the car around the world. Use the weight for the area you live in.

By the way, I thought car companies were going to lower weight oil just to improve the EPA fuel economy ratings. If Porsche changed to a 0 weight oil because you will have problems with the engine, then there would be a bulletin out, and there is none.

A technical bulletin was issued last year for approved engine oils for the US. There are 6 approved brands, including a non synthetic (standard mineral oil) brand. The listed oils are approved for all Porsches made since 1973.

These Mobil weights are approved by Porsche per bulletin #1/99 issued 3/17/00: 5W-30, 10W-30, and 15W-50. Until and unless this bulletin is revised, I will continue to use 15W-50.

Jeff




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Old October 28th, 2001, 03:40 PM   #5
Henry
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Re: I use 15W-50

Thanks for the replies.

Henry
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Old October 28th, 2001, 10:26 PM   #6
Magic Mtn Dan
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Of course they said that...

they want you to go to the dealer and pay them to change your oil and filter (for as much as $300). Mobil and Porsche are in bed together and do what they can to support each other. At some point, if Porsche decides to change vendors they'll cut Mobil loose like an unwanted fish.
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Old October 29th, 2001, 05:22 AM   #7
Lee in Rochester, NY
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You can buy 0W-40 Mobil 1 on-line here...

http://shop.store.yahoo.com/parkplacemotorcars/mob1trismoto.html

Note that the price includes shipping. I bought 20 quarts from them recently.
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